Testing methods for pervious concrete - Part 3: Resistance of surface degradation

This document specifies a procedure for testing the resistance of surface degradation of pervious concrete specimens in the laboratory. This document also specifies procedures for measuring the mass loss of specimens subjected to combined action of impact and abrasion in a rotating steel drum.

Méthodes d'essai pour ciments perméables — Partie 3: Résistance de la dégradation de surface

General Information

Status
Published
Publication Date
17-Sep-2023
Current Stage
6060 - International Standard published
Start Date
18-Sep-2023
Due Date
02-Dec-2023
Completion Date
18-Sep-2023

Overview

ISO 17785-3:2023 specifies a laboratory test method for assessing the resistance of surface degradation of pervious concrete. The standard defines a repeatable procedure to measure mass loss caused by the combined action of impact and abrasion in a rotating steel drum (Los Angeles machine style). Results are reported as a percentage mass loss after the prescribed number of revolutions, enabling comparison of the relative durability of pervious concrete mixtures.

Key topics and requirements

  • Test principle: Casting and curing cylindrical specimens, then subjecting them to impact-and-abrasion in a rotating steel drum; resistance expressed as percentage mass loss.
  • Specimens: Cylinders 100 mm diameter × 200 mm tall, tested in groups of three similar specimens.
  • Curing: Initial covered storage up to 48 h at 16 °C–27 °C (shielded from direct heat); followed by curing at 20 °C ± 2 °C (or 27 °C ± 2 °C for tropical regions). Moulds removed after a minimum of seven days.
  • Apparatus (examples required by the standard):
    • Balance accurate to 1 g (up to 2.5 kg)
    • Cylinder moulds with smooth internal face
    • Compaction hammer conforming to ASTM D6926 practice
    • Rotating steel drum conforming to ASTM C131 characteristics (Los Angeles machine)
    • Sieves complying with ISO 565
  • Test procedure specifics:
    • Fill moulds to 100 mm height at design density; consolidate using a specified sequence of hammer drops and record number of blows.
    • Rotate specimens in the drum at 30–33 r/min for 500 ± 5 revolutions.
    • Sieve discharged material on a 25 mm sieve; record retained mass.
  • Calculation & reporting: Mass loss = original mass − final retained mass; express as a percentage to the nearest 1%. Test report must include sample ID, reference to ISO 17785-3:2023, curing parameters, original/final masses, mass loss %, density/void content, compaction blows, and any deviations.

Applications and users

  • Practical uses: quality control, mix-design comparison, durability ranking of permeable pavement mixes, performance evaluation for parking lots, sidewalks, stormwater infiltration systems and other permeable pavement installations.
  • Typical users: materials and pavement engineers, concrete testing laboratories, spec writers, contractors, researchers developing or validating pervious concrete mixes.

Related standards

  • ISO 17785-1, ISO 17785-2 (other parts of the pervious concrete test series)
  • ISO 565 (sieve requirements)
  • ASTM C131 and ASTM D6926 (referenced apparatus/test practices)

Keywords: ISO 17785-3, pervious concrete, surface degradation, resistance to surface degradation, rotating steel drum, Los Angeles machine, mass loss, impact and abrasion, laboratory test method.

Standard

ISO 17785-3:2023 - Testing methods for pervious concrete — Part 3: Resistance of surface degradation Released:18. 09. 2023

English language
5 pages
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Frequently Asked Questions

ISO 17785-3:2023 is a standard published by the International Organization for Standardization (ISO). Its full title is "Testing methods for pervious concrete - Part 3: Resistance of surface degradation". This standard covers: This document specifies a procedure for testing the resistance of surface degradation of pervious concrete specimens in the laboratory. This document also specifies procedures for measuring the mass loss of specimens subjected to combined action of impact and abrasion in a rotating steel drum.

This document specifies a procedure for testing the resistance of surface degradation of pervious concrete specimens in the laboratory. This document also specifies procedures for measuring the mass loss of specimens subjected to combined action of impact and abrasion in a rotating steel drum.

ISO 17785-3:2023 is classified under the following ICS (International Classification for Standards) categories: 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 17785-3:2023 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 17785-3
First edition
2023-09
Testing methods for pervious
concrete —
Part 3:
Resistance of surface degradation
Méthodes d'essai pour ciments perméables —
Partie 3: Résistance de la dégradation de surface
Reference number
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
4.1 Method . 1
4.2 Resistance . 2
4.3 Comparison . . 2
5 Apparatus . 2
6 Sampling . 2
7 Specimen preparation . .2
7.1 Filling . 2
7.2 Consolidation . 3
7.3 Finishing and storage . 3
7.4 Curing . 3
8 Measuring procedure . 3
8.1 Curing . 3
8.2 Removing the moulds . 3
8.3 Revolution . 3
9 Calculation . 3
9.1 Calculate mass loss . 3
9.2 Divide the mass loss . 4
9.3 Record mass loss . . 4
10 Test report . 4
Bibliography . 5
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 71, Concrete, reinforced concrete and pre-
stressed concrete, Subcommittee SC 1, Test methods for concrete.
A list of all parts in the ISO 17785 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 17785-3:2023(E)
Testing methods for pervious concrete —
Part 3:
Resistance of surface degradation
1 Scope
This document specifies a pro
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